25421862 has 16 divisors (see below), whose sum is σ = 50893632. Its totient is φ = 8465640.

The previous prime is 25421839. The next prime is 25421899. The reversal of 25421862 is 26812452.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9537 + ... + 11907.

It is an arithmetic number, because the mean of its divisors is an integer number (3180852).

Almost surely, 2^25421862 is an apocalyptic number.

25421862 is an abundant number, since it is smaller than the sum of its proper divisors (25471770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25421862 is a wasteful number, since it uses less digits than its factorization.

25421862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163.

The product of its digits is 7680, while the sum is 30.

The square root of 25421862 is about 5042.0097183564. The cubic root of 25421862 is about 294.0373176750.

The spelling of 25421862 in words is "twenty-five million, four hundred twenty-one thousand, eight hundred sixty-two".